• Country
• Great Britain (UK)

• Manufacturer / Brand
• His Master's Voice (Masters, HMV, H.M.V., Marconi); Hayes, Middlesex, GB

• Year
• 1934

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 109370

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 4

• Valves / Tubes
• DSB VDS DH DPT

• Main principle
• Superheterodyne (common); ZF/IF 125.5 kHz; Screengrid 1926-1935

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Details
• Record Player (not changer)

• Power type and voltage
• Direct Current supply (DC) / 200-250 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Superhet Radiogram DC Four 505 - His Master's Voice Masters,

• Shape
• Console, Lowboy (legs < 50 %).

• Dimensions (WHD)
• 23 x 34 x 16 inch / 584 x 864 x 406 mm

• Notes
• An adaptor was available to permit operation from ac mains; priced at 1.50 GBP in 1934.

• Net weight (2.2 lb = 1 kg)
• 40 kg / 88 lb 1.7 oz (88.106 lb)

• Source of data
• - - Data from my own collection

• Literature/Schematics (1)
• -- Original-techn. papers.

• Author
• Model page created by Roy Johnson. See "Data change" for further contributors.

• Other Models

• Here you find 414 models, 323 with images and 242 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from His Master's Voice (Masters, HMV, H.M.V., Marconi); Hayes, Middlesex, GB